Addition Products of Metallic Salts with Certain Sulfur and Oxygen Compounds

Abstract

Several years ago, Smith and Semon2 reported the probable formation of the soluble, unstable compound [Hg(HgS)] (C104)2 by the reaction be-

Conformational Aspects of Chelate Rings

“…1,4-Dithiane does form compounds (11) of stoichiometry indicating possible cis chelation, e.g., CuX2-CéHgSg, but nothing is known of the structures. The case of 1,4-diselenane has been examined recently by infrared spectroscopy (49); the only cases where the spectrum is significantly different from that of the free ligand are (C4H8Se2)PdCl2 and (C4H8Se2)PtCl2, which may therefore, like the analogous 1,4-dimethylpiperazine compound of palladium, contain chelate rings with the cis conformation.…”